<div class='the-tit' (click)='clickTit()' [ngClass]="showDet ? 'click-tit' : 'default-tit'">
  <span>{{ reasons.title }}</span>
  <div class='icon-common' [ngClass]="showDet ? 'click-tit-icon' : 'tit-icon'" ></div>
</div>
<div class='the-det' [ngClass]="showDet ? 'show-det' : 'hide-det' ">
  {{ reasons.detail }}
</div>

